Of course, and those of us who pay attention do honor every soldier, sailor, airman, Marine and coastie. But, in our very hedonistic, selfish, materialistic age, for someone to give up fame, fortune and the celebrated, comfortable lifestyle that goes with a sucessful sports (or entertainment) career to join the Army Rangers in a time of war that, my friend, is a very, very rare sacrifice. "Above and beyond the call of duty" doesn't even begin to describe Pat Tillman's heroism.
In a way, his willingness to pay the ultimate price in defense of his country stands as a stands as a very public symbol of all those more anonymous dead of whom you speak. Don't resent the attention Pat Tillman's service and death will justly receive, for it calls attention to the bravery and sacrific of all the others. In death, he stands for all our honored dead.